JPH04277289A - Shutter for buildings - Google Patents

Abstract

PURPOSE:To provide a burglar-proof shutter which has transparency, intercepts small flying objects, and is light and small. CONSTITUTION:The upper end of a net-like shutter curtain 17 is engaged with a take-up shaft 16 having guiding flanges 18 at both ends, a guide roll 23 is provided in parallel with the take-up shaft 16, and the shutter curtain is hung down from the guide roll so that the take-up shaft 16 is rotatably driven by a take-up motor 25. The take-up motor 25 causes the take-up shaft 16 to rotate to open or close the shutter curtain 17. When the curtain 17 is closed, the shutter can be seen through. It is also so fine that it can intercept small flying objects.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter for a building, and more particularly to a security shutter for a building having transparency.

0002

2. Description of the Related Art Conventionally, as a transparent shutter for a building, there is a grille shutter which has a grid-like shutter curtain formed by connecting a large number of pipes with links.

0003

[Problems to be Solved by the Invention] In the conventional grille shutter described above, the structure of the shutter curtain is complicated, the number of parts is large, and the product price is high. Furthermore, since the gaps between the grids are large, small flying objects such as pebbles can pass through. Alternatively, since the shutter curtain is thick, when it is installed at an entrance with a high frontage height, there is a problem that the winding diameter of the shutter curtain becomes thick and the shutter curtain storage section becomes large.

[0004] In view of the above-mentioned circumstances, the present invention aims to provide a building shutter for crime prevention that is inexpensive, highly safe, and requires less installation space.

[0005]

[Means for Solving the Problems] The present invention provides a method in which the upper end side of a net-like shutter curtain is attached to a winding shaft with guide flanges attached to both ends, and a guide roll is provided parallel to the winding shaft. The invention is characterized in that the shutter curtain is hung around the guide roll, and the winding shaft is rotationally driven by a winding motor.

[0006]

[Operation] The hanging position of the net-like shutter curtain is determined by guide rolls, and the curtain is opened and closed by the rotation of the winding shaft.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

The building shutters shown in FIGS. 1 to 5 are examples of building shutters installed at wide entrances and exits, and have three sets of shutter units 1C, 1R, and 1L.

A frame-shaped frame 4 is attached to the ceiling surface 3 at the center of the entrance/exit 2, and the frame 4 supports the shutter unit 1C located at the center. The other end is supported by the side walls 5R and 5L.

The central shutter unit 1C will be explained below with reference to FIGS. 3 and 5.

The frame 4 includes a flat rectangular frame 6, vertical members 7, 8, 9, 10 provided vertically at appropriate positions, and vertical members 7, 9, 10 located near both ends and the frame 6. It consists of a right side substrate 11 and a left side substrate 12 which are provided in a suspended manner.

[0012] Horizontal support beams 13 and 14 are attached to the lower end positions of the right side board 11 and left side board 12, respectively, and a shutter curtain winding shaft 16C is rotatably attached to both support beams 13 and 14 via bearings 15 and 15. Install.

Flanges 18 for preventing irregular winding of the shutter curtain 17C are fixed to both ends of the winding shaft 16C. Moreover, one rotating shaft 1 of the winding shaft 16C
9C is fitted with driven sprocket 20C.

Brackets 21, 21 are attached to the tips of both the support beams 13, 14, and the guide roll 23C is connected via bearings 22, 22 fixed to the brackets 21, 21.
be installed so that it can rotate freely.

A motor support stand 24C is fixed to the opposite side of the winding shaft of the vertical member 10, and a take-up motor 25C for winding up the shutter curtain is mounted on the motor support stand 24C. A driving sprocket 26C is fixed to the output shaft. A chain 27C is connected between the driving sprocket 26C and the driven sprocket 20C.
Hang around and connect.

A net-like shutter curtain 17C is attached to the winding shaft 16C by a shutter curtain attachment device 28C, which will be described later, and the shutter curtain 17C hangs down around the guide roll 23C. Further, a seat plate unit 29C, which will be described later, is attached to the lower end of the shutter curtain 17C.

By driving the winding motor 25C, the shutter curtain 17C is unwound or rolled up, opening and closing the entrance and exit, and furthermore, in the closed state, the shutter curtain 17C is transparent. Furthermore, since the shutter curtain is made of a net-like material, it has the characteristic that it is difficult to see the inside from the outside, but it is easy to see the outside from the inside.

Next, the right shutter unit 1R will be explained with reference to FIG.

A support beam 30 is located at the middle position of the right substrate 11.
and also fix the shelf material 31 to the right side wall 5R. The right winding shaft 16R is rotatably attached to the support beam 30 and the shelf material 31 via bearings 32, 32.

At both ends of the right winding shaft 16R,
Similar to the winding shaft 16C, the shutter curtain 1
A flange 18 for preventing irregular winding of 7R is provided. Further, a driven sprocket 20R is fitted onto one rotating shaft 19R of the right winding shaft 16R.

Brackets 21, 21 are attached to the tips of the support beam 30 and the shelf material 31, and the brackets 21
, 21, the right guide roll 23R is rotatably mounted via bearings 22, 22 fixed to the rollers 21, 21.

A motor support stand 24R is fixed to the side surface of the vertical member 7 opposite to the right side of the winding shaft, and the motor support stand 24R
Right side winding motor 25R for winding shutter curtain on top
A drive sprocket 26R is fixed to the output shaft of the right winding motor 25R. The drive sprocket 26R and the driven sprocket 20R are connected via a chain 27R, and the right winding motor 25R
, the right winding shaft 16R rotates in the winding direction or in the feeding direction of the right shutter curtain 17R.

The right shutter curtain 17R has a net shape similar to the shutter curtain 17C described above, and is secured by a shutter curtain fastening device 28R, which will be described later.
It is attached to the right winding shaft 16R, and a seat plate unit 29R is attached to its lower end.

Next, the left shutter unit 1L has the same configuration as the right shutter unit 1R except for its symmetrical arrangement, so the description thereof will be omitted below.

In the left shutter unit 1L, 16L is a left winding shaft, 23L is a left guide roll, 25L is a left winding motor, and 17L is a left shutter curtain.

[0026] Here, the above-mentioned shutter curtain 17C
, 17R, and 17L are made of a net-like material. Examples of the net-like material include stainless steel wire used in belt conveyors, or densely woven steel wire. Such a net-like material is lightweight and has high strength.

Further, as is clear from the above structure, the shutter in this embodiment does not have a guide for raising and lowering the shutter curtain, and the shutter curtains 17C, 17R, 17L are moved horizontally by the flanges 18, 18 at the hanging base. Positioning is done.

[0028] Each of the winding motors 25C, 25
By driving R and 25L, the shutter curtain 17C
, 17R, 17L can be opened and closed. Further, it is preferable that the take-up motors 25C, 25R, and 25L are driven in synchronization, but since each shutter unit has a completely independent configuration, there is no need for strict synchronization, and it is not necessary to open and close them individually. Of course, it is also possible.

Note that the shutter curtain attachment device 2 described above
8C, 28R, 28L, seat plate unit 29C,
29R and 29L each have the same configuration.

Next, the locking device 28 for the shutter curtain 17 will be explained with reference to FIGS. 6 to 8.

Net-like materials are easily deformed by localized loads. Therefore, local loads are not applied to the anchoring device 28, which will be described below.

An end plate holder 33 made of a large-diameter coil formed into a flat shape is attached to the upper end of the shutter curtain 17, and an end plate 34 is inserted into the end plate holder 33.

The upper end of the shutter curtain 17 is attached to a hanging metal fitting 35 via the end plate 34 and the end plate holder 33.

The hanging metal fitting 35 consists of a shutter curtain gripping part 36 which is folded back so as to leave a gap equal to the thickness of the shutter curtain 17, and a joint part 38 which can be connected to the slats 37 of a general shutter curtain. Grip part 36
and a joint portion 38 are connected by a required fastener 39 such as a bolt or nut. Of course, the grip part 36
It is also possible to mold the joint portion 38 and the joint portion 38 integrally.

[0035] The shutter curtain 17 is attached to the hanging metal fittings 35.
To attach the end plate holder 33 to the grip portion 36 together with the end plate 34, the end plate holder 33 is then folded back.

A slat 37 is connected to the joint portion 38 so as to correspond to approximately one turn of the winding shaft 16.

Winding up the shutter curtain 17 on the shaft 16
This is done via the above-mentioned fastening device 28.

The endmost slat 37 is fixed to the winding shaft 16 with a bolt 40. Next, shutter curtain 1
I'm going to involve 7. Here, the reason why approximately one turn of slats 37 is connected to the hanging metal fitting 35 is to make the cross-sectional shape to be approximately circular when wound up.

After winding the group of slats 37 once, the shutter curtain 17 is wound about two more times to complete the engagement of the shutter curtain 17 with the winding shaft 16. Although the end of the shutter curtain 17 is simply inserted into the hanging metal fitting 35 and folded back, by further winding the shutter curtain 17, the tightening force of the shutter curtain 17 is applied to the winding shaft 16 of the shutter curtain 17. The anchoring is ensured.

Furthermore, as shown in FIGS. 9 and 10, the seat plate unit 29
I will explain about it.

[0041] Shutter curtain 1 of the seat plate unit 19
Regarding the attachment to the shutter curtain 7, considering that the shutter curtain 17 is made of a net-like material like the securing device 28,
It is designed to prevent local forces from acting on it.

An end plate holder 33 made of a large diameter coil formed into a flat shape is attached to the lower end of the shutter curtain 17, and an end plate 34 is inserted into the end plate holder 33. Attachment to the seat plate unit 29 is performed via the end plate 34.

The seat plate unit 29 is mainly composed of a seat plate main body 41 and a seat plate cover 42.

The seat plate main body 41 is formed by bending a plate material such as a stainless steel plate so as to form a substantially hollow L-shape. More specifically, the folded portion 43 facing the shutter curtain 17
From the top surface 44, the front surface 45, the bottom surface 46, and the bottom surface 47
, is bent 90 degrees in the same direction as the shelf portion 48, and then the bracket portion 49 is bent 90 degrees in the opposite direction.

The seat plate cover 42 is formed to compensate for the missing portion of the seat plate main body 41 and to have a rectangular cross section as a whole.

More specifically, the folded portion 50 facing the shutter curtain 17, the upper surface 51, the back surface 52, and the bottom portion 53 that rests on the shelf 48 are sequentially bent by 90°.

A pedestal metal fitting 55, to which a bolt 54 is fixed in advance, is fixed to the inside of the front side 45 of the seat plate main body 41.

The bolt 54 which passes through the collar is inserted into the end plate 34, and the auxiliary metal fitting 56 formed in a stepped shape is inserted into the bolt 54. Both the auxiliary metal fitting 56 and the end plate 34 are fixed to the pedestal metal fitting 55 using nuts 57.

The seat plate cover 42 is mounted on the shelf 48 and is fastened to the auxiliary fitting 56 and the bracket 49 with decorative screws 58 such as countersunk screws, so that the seat plate main body 41 Attach to.

[0050] Thus, the lower end of the shutter curtain 17 and the mounting structure at the lower end are all covered by the seat plate main body 41 and the seat plate cover 42.

Next, the seat plate cover 42 is provided with a U-shaped hook fitting 60 which is movable up and down and pairs with a fixing device 59 at the lower end of the shutter curtain, which will be described below.

FIG. 1 shows the shutter curtain lower end fixing device 59.
1. This will be explained with reference to FIG.

A key case 62 is buried in the floor 61. The key case 62 has a flat boot-shaped gap 64 into which a key plate 63 (described later) is inserted, the gap 64 is formed in a plane perpendicular to the shutter curtain 17, and the length of the upper end opening is is made sufficiently longer than the protrusion length of the protrusion 65 at the bottom of the gap.

A foot portion 66 that engages with the protruding portion 65 is formed at the lower part of the key plate 63.
3 is formed with a hook portion 67 that protrudes toward the shutter curtain side, and a recess 68 into which the hook fitting 60 is fitted from above is carved into the hook portion 67.

Reference numeral 69 in FIG. 11 is a lock plate that restricts the movement of the key plate 63 within the key case 62.

The lower end of the shutter curtain 17 may be fixed in the following manner.

First, the shutter curtain 17 is lowered and the seat plate unit 29 is grounded on the floor. While pulling up the hook metal fitting 60, the key plate 63 is inserted into the key case 62, and after insertion, it is slid toward the shutter curtain 17 side. The foot portion 66 of the key plate 63 is connected to the protruding portion 65.
At the same time, a gap is created on the opposite side of the shutter curtain 17 of the key plate 63. The lock plate 6 is inserted into the gap.
9, the key plate 63 is fixed.

Next, when the hook fitting 60 is lowered and fitted into the recess 68, the lower end of the shutter curtain 17 is fixed by the fixing device 59.

If a plate spring or the like is provided along the recess 68 so that the hook fitting 60 comes into sliding contact with the plate spring when fitting into the recess 68, the friction between the hook fitting 60 and the plate spring causes the recess 68 to The fitted state between the hook fitting 60 and the hook fitting 60 becomes more stable.

Furthermore, when the shutter curtain is open, the key plate 63 and lock plate 69 are in a detached state. Although there is no practical problem in leaving the gaps into which the key plate 63 and lock plate 69 are inserted in the form of slits, a dummy plate 70 as shown in FIG. 13 may be inserted therein. Incidentally, a hook portion 71 is formed at a corner of the dummy plate 70 to facilitate removal.

Although three sets of shutter units 1C, 1R, and 1L are provided in this embodiment, it goes without saying that it is possible to provide two, one, or four or more sets.

[0062]

As described above, according to the present invention, since the net-like shutter curtain is lightweight and has high strength, it has a high crime prevention effect and can also prevent small flying objects from passing through. Also, since it is a net-like member, it has good visibility from the inside, but it also has the effect that it is difficult to see the inside from the outside. Furthermore, since the shutter curtain is made of a net-like material, the winding diameter when wound is small, and the space occupied by the winding section and the curtain storage section can be reduced, and the device can be made more compact. Since the winding shafts are arranged at different levels, interference with adjacent winding shafts, drive systems, etc. can be avoided, and the desired number of shutter units can be arranged, making it possible to accommodate entrances with large frontage. It is possible. Furthermore, since no guide rail is used as a guide for the shutter curtain, the design is excellent, and when a plurality of shutter units are arranged, there is no need for a guide rail at the joint between the shutter curtains, and workability is significantly improved.

[Brief explanation of the drawing]

FIG. 1 is a rear view of an embodiment of the present invention.

FIG. 2 is a view taken along the line A-A in FIG. 1;

FIG. 3 is a view taken along the line BB in FIG. 1;

FIG. 4 is a view along the line CC in FIG. 1;

FIG. 5 is a view taken along arrow D in FIG. 1;

FIG. 6 is a sectional view of the shutter curtain hanging portion.

FIG. 7 is a side view of the hanging metal fitting.

FIG. 8 is a front view of the hanging metal fitting.

FIG. 9 is a front view showing a part of the seat plate unit.

FIG. 10 is a view taken along the line E-E in FIG. 9;

FIG. 11 is a cross-sectional view of the fixation device.

FIG. 12 is a view taken along the line FF in FIG. 11;

FIG. 13 is a side view of the dummy plate.

[Explanation of symbols]

16 Shutter curtain winding shaft 17
Shutter curtain 18 Flange 23 Guide roll 25 Take-up motor

Claims (2)

[Claims] Claim 1: The upper end side of the net-like shutter curtain is attached to a winding shaft with guiding flanges attached to both ends, a guide roll is provided parallel to the winding shaft, and the shutter curtain is attached to the guide roll. 1. A shutter for a building, characterized in that the shutter is hung around and hangs down, and the winding shaft is rotationally driven by a winding motor. 2. The upper end side of the net-like shutter curtain is attached to a winding shaft with guiding flanges attached to both ends, a guide roll is provided parallel to the winding shaft, and the shutter curtain is attached to the guide roll. The winding shaft, A building shutter characterized by having guide rolls arranged at different levels.